feat: Implement get invoices API endpoint

packages/backend/src/controllers/api/v1/users/get-invoices.ee.js

@@ -0,0 +1,7 @@
+import { renderObject } from '../../../../helpers/renderer.js';
+
+export default async (request, response) => {
+  const invoices = await request.currentUser.getInvoices();
+
+  renderObject(response, invoices);
+};

packages/backend/src/controllers/api/v1/users/get-invoices.ee.test.js

@@ -0,0 +1,34 @@
+import { describe, it, expect, beforeEach, vi } from 'vitest';
+import request from 'supertest';
+import app from '../../../../app.js';
+import createAuthTokenByUserId from '../../../../helpers/create-auth-token-by-user-id';
+import { createUser } from '../../../../../test/factories/user';
+import User from '../../../../models/user';
+import getInvoicesMock from '../../../../../test/mocks/rest/api/v1/users/get-invoices.ee';
+
+describe('GET /api/v1/user/invoices', () => {
+  let currentUser, token;
+
+  beforeEach(async () => {
+    currentUser = await createUser();
+    token = createAuthTokenByUserId(currentUser.id);
+  });
+
+  it('should return current user invoices', async () => {
+    const invoices = [
+      { id: 1, amount: 100, description: 'Invoice 1' },
+      { id: 2, amount: 200, description: 'Invoice 2' },
+    ];
+
+    vi.spyOn(User.prototype, 'getInvoices').mockResolvedValue(invoices);
+
+    const response = await request(app)
+      .get('/api/v1/users/invoices')
+      .set('Authorization', token)
+      .expect(200);
+
+    const expectedPayload = await getInvoicesMock(invoices);
+
+    expect(response.body).toEqual(expectedPayload);
+  });
+});